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Chris344
Member Since: 26 Jan 2009
Location: Charleston, South Carolina
Posts: 13
  
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| Vibration after front differential replacement |
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I just got my truck back from the dealer after having the front diff replaced and I've noticed that now when on the interestate at around 70mph and 2,000 rpms there is a vibration/ roughness coming from somewhere. I feel it most in the pedals, but it shakes the whole truck. If the truck downshifts to 5th, or if I speed up (over 75) it goes away. It's most noticiable when going uphill.
I also had an alignment done, and the tires rotated and balanced. Its an 06 HSE V8 w/ 45K on it.
Any thoughts on what it could be? 2006 HSE7 V8
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 30th Jul 2009 9:01 am |
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ronp
Member Since: 29 Nov 2006
Location: North Yorkshire
Posts: 15214
  
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Get rid of the 'truck' and get an LR3.
They're much smoother.  I was a normal heterosexual chap, but in these new woke awakenings I now identify as a Wardrobe.
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| 30th Jul 2009 9:05 am |
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Chris344
Member Since: 26 Jan 2009
Location: Charleston, South Carolina
Posts: 13
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Ha, maybe that's what it is.
Down here in the "south" anything with 4WD that weighs 5000lbs+ is called a truck. My friends tell me that I sound pretentious when I keep calling it the Land Rover. It must just be their jealousy since most drive Tahoes. 2006 HSE7 V8
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| 30th Jul 2009 10:38 am |
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ronp
Member Since: 29 Nov 2006
Location: North Yorkshire
Posts: 15214
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Nice to see an American who can absorb our dry sense of humour.
sorry the response wasn't very helpful to your question though. I was a normal heterosexual chap, but in these new woke awakenings I now identify as a Wardrobe.
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| 30th Jul 2009 10:46 am |
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WELWYNLR
Member Since: 22 Jul 2009
Location: Herts
Posts: 20
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Now this could be something as simple as unbalanced wheels or something a little more complex maybe related to spline wear on the driveshaft. (Why did you have the diff replaced? Did it go bang?  )
I would go with the former first and have the wheels balanced.
Have experienced roughness and vibration through worn wheel bearings, (actually hub replacement) which is becoming more common but this shouldn't link to your diff replacement. ...or alternatively get your Genuine bits here!
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| 30th Jul 2009 1:58 pm |
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GaryEss
Member Since: 27 Apr 2009
Location: midlands
Posts: 42
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Another Forum Member , Martin, has posted about vibration following diff replacement- I do not know how to post a link but the thread name was"Driveline shudder on manual D3 ". There are some bits that won't apply to you (manual box and flywheel stuff), but the rest may be worth a read.
If you view my other posts you can find this thread.
Good luck
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| 30th Jul 2009 6:30 pm |
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Chris344
Member Since: 26 Jan 2009
Location: Charleston, South Carolina
Posts: 13
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The diff was replaced because it was leaking. The wheels were just balanced so I know that's not it. It might not have anything to do with the diff, maybe I'm just noticing it now because it's driving more quietly.
It's as if it's lacking power, then it downshifts and all is fine. It's most noticeable after driving for a while, say about an hour or more. 2006 HSE7 V8
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| 30th Jul 2009 9:54 pm |
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WELWYNLR
Member Since: 22 Jul 2009
Location: Herts
Posts: 20
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Spoken to our Workshop controller who suggests that maybe a misalignment of splines on the propshaft could be the cause which may have occurred whilst the difff was being refitted, only other thing that was mentioned is a misfire due to poor quality fuel but in his experience this generally happens more to Diesel variants. ...or alternatively get your Genuine bits here!
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| 31st Jul 2009 11:17 am |
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Chris344
Member Since: 26 Jan 2009
Location: Charleston, South Carolina
Posts: 13
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Thanks for all the help; I got it resolved this afternoon. There was a TSB for NA V8's out on it:
From TSB LTB00010:
"Situation: With the engine at normal operating temperature, a customer may report very slow
acceleration from approximately 62 to 75 mph (100 to 120 kph) after steady cruising. A customer may
also complain about a low frequency cabin boom type noise and vibration when accelerating in this
speed range.
Action: Should a customer express a concern, refer to the Repair Procedure detailed in this bulletin
to re-configure the Engine Control Module (ECM) using the Integrated Diagnostic System (IDS). "
The "truck" is good as new now. 2006 HSE7 V8
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| 31st Jul 2009 11:20 pm |
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